Pump



June 10, 1930,

'c. P. FREDERICK 1,763,395

PUMP 7 Filed Oct. 1, 1928 2 Sheets-Sheet l Inventor wwwm Attorngr June 10, 1930.

c P. FREDERICK PUMP Filed Oct. 1, 1928 2 Sheets-Sheet 2 o .wlrrrvllillli l bz'uemar CTEfFea Gr/b/r Arming l at entecl June 10, 1930 CHARLES P. FREDERICK, OF SEATTLE, WASHINGTON PUMP Application filed Octoberl, 1928.

The present invention relates to improvements in pumps and has reference more particularly to a pump of the valveless and pipeless type.

More particularly, the invention relates to a pump of the endless conveyor type wherein a travelling belt formed from a length of a coil spring is trained over upper and lower pulleys, the lower pulley being submerged in the liquid that is to be raised, the upper pulley being operated from any suitable source.

A discharge chute is located adjacent the upper pulley to receive the water or other liquid that is elevated by the endless belt.

A further object is to provide a pump of the above mentioned character which will at all times be positive and efficient in its operation, the same being further simple in construction, inexpensive, strong, and durable and further well adapted to the purposes for which it is designed.

Otherobjects and advantages will become apparent during the course of the following description.

In the accompanying drawing, forming a part of this specification, and in which like numerals indicate like parts throughout the same:

Figure 1 is a side elevation of the pump embodying my invention,

Figure 2 is a front view, and

Figure 3 is a fragmentary sectional view through the upper portion of a casing, and the discharge chute or spout showing the upper pulley and theendless liquid conveyor belt trained thereover.

In the drawing wherein for the purpose of illustration is shown a preferred embodiment of my invention, the numeral 1 designates generally a supporting frame that is submerged within the body of the water or other liquid that is to be elevated by my improved ump.

I Mounted on top of the frame 1 is the elongated casing 2 that houses the major portion of the liquid conveying belt. A shaft 3 is journaled in suitable bearings in the upper portion of the casing, one end of the shaft v extending beyond the adjacent side of the Serial No. 309,456.

casing and having carried thereon a pulley wheel 1 that is driven by any suitable source of power and in the present instance, the

driving means comprises an electric motor 5 thatis mounted ona suitable platform 6 arranged 011 the rear side of the casing, a small pulley 7 being secured on the drive shaft of the motor and a driving belt 8 is trained over the pulleys 4: and 7 in the manner as clearly shown in Figure 1.

Secured on the shaft 3 for rotation therewith within the top portion of the casing 2 is the large pulley 9, a similar pulley 10 being supported on the shaft 11 that is journaled in suitable bearings 12 provided therefor in the framework 1.

Trained over these pulleys a and 10 is the endless conveyor belt 13 that is constructed of a single length of a coil spring, the convolutions of which normally abut with each other. The size ofthe coil spring conveyor beltdepends largely upon the particular use to which the conveyor is to be put.

' The pump further includes the provision of the dischar e chute or spout 14 and eX- tends through the front side of the casing 2 for disposition adjacent the upper pulley 9 and it will be observed upon inspecting Figure 3, that the inner end portion of the discharge spout is out out to accommodate the downwardly travelling flight of the endless conveyor belt 13. j

A grooved take off wheel 15 carried by a shaft 16 that is journaledin suitable bearings 17 formed on the upperends of upstanding ears carried by the sides of the discharge spout la is adapted for cooperation with the endless conveyor belt13 in the manner as shown very clearly in Figure 3.

In the operation of the pump, the endless conveyor 13 travels in the direction of the arrows and as the tubular conveyor belt travels around the submerged pulley 10, the convolutions will be spread apart and the liquid will fill the spaces and the intersticesbetween the convolutions and as the conveyor belt travels upwardly, the liquid is held in suspension in such interstices.

- Furthermore the liquid is caused to remain in the conveyor beltby reason of capillary retarding action of the said wheel.

or natural adhesion and when the liquid laden conveyor belt reaches the top pulley 4, the liquid will be thrown off from the tubular conveyor belt by centrifugal force in the direction of a tangent to the pulley 4, the liquid will be thrown off from the tubular conveyor belt by centrifugal force in the direction of a tangent to the pulley therefor and will be deflected into the discharge chute 14, the take oii wheel 15 further aiding in discharging the water from the conveyor belt into the discharge chute by reason of its binding engagement with the downwardly travelling flight ofthe conveyor. As will be obvious, the convolutions of the spring conveyor downwardly between thepulley 9 and the binding wheel 15 is slightly retarded durin the travelling of the conveyor tube, with t 1e result that the consequent tension on the conveyor stretches same, .so that the convolution'sbelow the wheel 15 are spread apart and remain apart, until they are passing over the pulley 9 and approach the wheel 15, at which time they are crowded together byr the his said frame, an additional pulley mounted for rotation in the upper portion of the casing, an endless conveyor tube formed of closely coiled springs trained over said pulleys, means for operating the conveying tube to lift the liquid upwardly into the casing, a discharge spout extending from the side of the casing adjacent the upper pulley for receiving the water deflected above the upper pulley by centrifugal force during the operation 'of the" endless conveyor tubes, and a take off wheel supported above the discharge spout and having binding engagement with the downwardly travelling flight of the endless conveyor tube for retarding the downward passage of said tube and causing the convolutions thereof to be spread apart as they pass beyond thewheels and to be crowded together as they said wheels. 1

In testimony whereof I aflix my signature.

CHARLES P. FREDERICK.

approach in proximity to the crowding together of the eonvolutions causes the liquid to be squeezed from the spaces and interstices between the convolutions and thus more easily thrown oh by centrifugal force.

It will thus be seen 'from the foregoing desc'ription, that I have provided'a, pump for elevating liquid that will at all times be efficient and reliable in its operation, and the use of valves and pipes will be eliminated thus saving considerable expense. 7

While I have shown the preferredembodiment of my invention, it is to be understood that various changesin the size, sha e and an rangement of parts may be resorte to without departing from the spirit of the invention' and the sco' e of the appended claims.

7 Having'thusescribed my invention, what I claim as new is:

1. In a pum of the class described, upper and lower pulleys, the lower pulley being adapted to be submerged in the liquid to be elevated, an endless conveyor tube formed of coiled springs trained over the pulley, means for operating the tube to lift the fluid, and a discharge chute for receiving the liquid deflected ofl? of the upper pulley by centrifugal force, and a take off wheel mounted above the discharge chute and having binding engagement with the downwardly travelling flight of the conveyor tube for retarding the downward passage of said flight for causing the convolutions thereof to be spread apart asthey pass beyond the wheel and to become crowded together as they'approach in proximity tovthe said wheel.

2. In a pump of the class described, a supporting frame adapted tobe submerged in a body of liquid, a casing mounted on said frame, a pulley journaled for rotation in 

